An instrument which measures the rate of regularly recurring variations in an electric current or voltage and is usually calibrated in hertz (cycles per second or cps). The value may be expressed by means of a pointer and calibrated dial vibrating reed or a digital read out display. For instruments which measure radio frequencies, see calibrator, frequency; and wavementer. excludes: counter electronic digital.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5975-01-406-4249
NSN 5920-01-153-2690
NSN 6620-01-146-4680
NSN 5960-01-340-9485
NSN 6145-01-067-8619
NSN 5910-00-276-8592
NSN 5915-01-190-6344
NSN 5905-01-442-4669
NSN 5835-00-632-8621
NSN 2925-00-999-8967
NSN 6130-01-646-9396
NSN 5930-01-617-2708